Quarterly report pursuant to Section 13 or 15(d)

Available-for-Sale Securities, at Fair Value Schedule of Realized Gain (Loss) (Details)

v3.21.2
Available-for-Sale Securities, at Fair Value Schedule of Realized Gain (Loss) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Debt Securities, Available-for-sale [Abstract]        
Proceeds from sales of available-for-sale securities $ 502,349 $ 0 $ 5,102,894 $ 16,969,870
Amortized cost of available-for-sale securities sold (481,751) 0 (4,998,583) (17,947,686)
Gross realized gains 20,598 0 133,583 280,885
Gross realized losses 0 0 (29,272) (1,258,701)
Total realized gains (losses) on sales, net $ 20,598 $ 0 $ 104,311 $ (977,816)